Initial revision

1 files changed, 739 insertions, 0 deletions

diff --git a/hw/xwin/winscrinit.c b/hw/xwin/winscrinit.c
new file mode 100644
index 000000000..41811d253
--- /dev/null
+++ b/hw/xwin/winscrinit.c
@@ -0,0 +1,739 @@
+/*
+ *Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved.
+ *
+ *Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ *"Software"), to deal in the Software without restriction, including
+ *without limitation the rights to use, copy, modify, merge, publish,
+ *distribute, sublicense, and/or sell copies of the Software, and to
+ *permit persons to whom the Software is furnished to do so, subject to
+ *the following conditions:
+ *
+ *The above copyright notice and this permission notice shall be
+ *included in all copies or substantial portions of the Software.
+ *
+ *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *NONINFRINGEMENT. IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR
+ *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+ *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *Except as contained in this notice, the name of the XFree86 Project
+ *shall not be used in advertising or otherwise to promote the sale, use
+ *or other dealings in this Software without prior written authorization
+ *from the XFree86 Project.
+ *
+ * Authors:	Dakshinamurthy Karra
+ *		Suhaib M Siddiqi
+ *		Peter Busch
+ *		Harold L Hunt II
+ *		Kensuke Matsuzaki
+ */
+/* $XFree86: xc/programs/Xserver/hw/xwin/winscrinit.c,v 1.26 2003/02/12 15:01:38 alanh Exp $ */
+
+#include "win.h"
+
+
+/*
+ * Determine what type of screen we are initializing
+ * and call the appropriate procedure to intiailize
+ * that type of screen.
+ */
+
+Bool
+winScreenInit (int index,
+	       ScreenPtr pScreen,
+	       int argc, char **argv)
+{
+  winScreenInfoPtr      pScreenInfo = &g_ScreenInfo[index];
+  winPrivScreenPtr	pScreenPriv;
+  HDC			hdc;
+
+#if CYGDEBUG
+  ErrorF ("winScreenInit - dwWidth: %d dwHeight: %d\n",
+	  pScreenInfo->dwWidth, pScreenInfo->dwHeight);
+#endif
+
+  /* Allocate privates for this screen */
+  if (!winAllocatePrivates (pScreen))
+    {
+      ErrorF ("winScreenInit - Couldn't allocate screen privates\n");
+      return FALSE;
+    }
+
+  /* Get a pointer to the privates structure that was allocated */
+  pScreenPriv = winGetScreenPriv (pScreen);
+
+  /* Save a pointer to this screen in the screen info structure */
+  pScreenInfo->pScreen = pScreen;
+
+  /* Save a pointer to the screen info in the screen privates structure */
+  /* This allows us to get back to the screen info from a screen pointer */
+  pScreenPriv->pScreenInfo = pScreenInfo;
+
+  /*
+   * Determine which engine to use.
+   *
+   * NOTE: This is done once per screen because each screen possibly has
+   * a preferred engine specified on the command line.
+   */
+  if (!winSetEngine (pScreen))
+    {
+      ErrorF ("winScreenInit - winSetEngine () failed\n");
+      return FALSE;
+    }
+
+  /* Adjust the video mode for our engine type */
+  if (!(*pScreenPriv->pwinAdjustVideoMode) (pScreen))
+    {
+      ErrorF ("winScreenInit - winAdjustVideoMode () failed\n");
+      return FALSE;
+    }
+
+  /* Check for supported display depth */
+  if (!(WIN_SUPPORTED_BPPS & (1 << (pScreenInfo->dwBPP - 1))))
+    {
+      ErrorF ("winScreenInit - Unsupported display depth: %d\n" \
+	      "Change your Windows display depth to 15, 16, 24, or 32 bits "
+	      "per pixel.\n",
+	      pScreenInfo->dwBPP);
+      ErrorF ("winScreenInit - Supported depths: %08x\n",
+	      WIN_SUPPORTED_BPPS);
+#if WIN_CHECK_DEPTH
+      return FALSE;
+#endif
+    }
+
+  /*
+   * Check that all monitors have the same display depth if we are using
+   * multiple monitors
+   */
+  if (pScreenInfo->fMultipleMonitors 
+      && !GetSystemMetrics (SM_SAMEDISPLAYFORMAT))
+    {
+      ErrorF ("winScreenInit - Monitors do not all have same pixel format / "
+	      "display depth.\n"
+	      "Using primary display only.\n");
+      pScreenInfo->fMultipleMonitors = FALSE;
+    }
+
+  /* Create display window */
+  if (!(*pScreenPriv->pwinCreateBoundingWindow) (pScreen))
+    {
+      ErrorF ("winScreenInit - pwinCreateBoundingWindow () "
+	      "failed\n");
+      return FALSE;
+    }
+
+  /* Get a device context */
+  hdc = GetDC (pScreenPriv->hwndScreen);
+
+  /* Store the initial height, width, and depth of the display */
+  /* Are we using multiple monitors? */
+  if (pScreenInfo->fMultipleMonitors)
+    {
+      pScreenPriv->dwLastWindowsWidth = GetSystemMetrics (SM_CXVIRTUALSCREEN);
+      pScreenPriv->dwLastWindowsHeight = GetSystemMetrics (SM_CYVIRTUALSCREEN);
+
+      /* 
+       * In this case, some of the defaults set in
+       * winInitializeDefaultScreens () are not correct ...
+       */
+      if (!pScreenInfo->fUserGaveHeightAndWidth)
+	{
+	  pScreenInfo->dwWidth = GetSystemMetrics (SM_CXVIRTUALSCREEN);
+	  pScreenInfo->dwHeight = GetSystemMetrics (SM_CYVIRTUALSCREEN);
+	  pScreenInfo->dwWidth_mm = (pScreenInfo->dwWidth /
+				     WIN_DEFAULT_DPI) * 25.4;
+	  pScreenInfo->dwHeight_mm = (pScreenInfo->dwHeight /
+				      WIN_DEFAULT_DPI) * 25.4;
+	}
+    }
+  else
+    {
+      pScreenPriv->dwLastWindowsWidth = GetSystemMetrics (SM_CXSCREEN);
+      pScreenPriv->dwLastWindowsHeight = GetSystemMetrics (SM_CYSCREEN);
+    }
+
+  /* Save the original bits per pixel */
+  pScreenPriv->dwLastWindowsBitsPixel = GetDeviceCaps (hdc, BITSPIXEL);
+
+  /* Release the device context */
+  ReleaseDC (pScreenPriv->hwndScreen, hdc);
+    
+  /* Clear the visuals list */
+  miClearVisualTypes ();
+  
+  /* Set the padded screen width */
+  pScreenInfo->dwPaddedWidth = PixmapBytePad (pScreenInfo->dwWidth,
+					      pScreenInfo->dwBPP);
+
+  /* Call the engine dependent screen initialization procedure */
+  if (!((*pScreenPriv->pwinFinishScreenInit) (index, pScreen, argc, argv)))
+    {
+      ErrorF ("winScreenInit - winFinishScreenInit () failed\n");
+      return FALSE;
+    }
+
+#if CYGDEBUG || YES
+  ErrorF ("winScreenInit - returning\n");
+#endif
+
+  return TRUE;
+}
+
+
+/* See Porting Layer Definition - p. 20 */
+Bool
+winFinishScreenInitFB (int index,
+		       ScreenPtr pScreen,
+		       int argc, char **argv)
+{
+  winScreenPriv(pScreen);
+  winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
+  VisualPtr		pVisual = NULL;
+  char			*pbits = NULL;
+  int			iReturn;
+
+#if WIN_LAYER_SUPPORT
+  pScreenPriv->dwLayerKind = LAYER_SHADOW;
+#endif
+
+  /* Create framebuffer */
+  if (!(*pScreenPriv->pwinAllocateFB) (pScreen))
+    {
+      ErrorF ("winFinishScreenInitFB - Could not allocate framebuffer\n");
+      return FALSE;
+    }
+
+  /*
+   * Grab the number of bits that are used to represent color in each pixel.
+   */
+  if (pScreenInfo->dwBPP == 8)
+    pScreenInfo->dwDepth = 8;
+  else
+    pScreenInfo->dwDepth = winCountBits (pScreenPriv->dwRedMask)
+      + winCountBits (pScreenPriv->dwGreenMask)
+      + winCountBits (pScreenPriv->dwBlueMask);
+  
+  ErrorF ("winFinishScreenInitFB - Masks: %08x %08x %08x\n",
+	  pScreenPriv->dwRedMask, pScreenPriv->dwGreenMask,
+	  pScreenPriv->dwBlueMask);
+
+  /* Init visuals */
+  if (!(*pScreenPriv->pwinInitVisuals) (pScreen))
+    {
+      ErrorF ("winFinishScreenInitFB - winInitVisuals failed\n");
+      return FALSE;
+    }
+
+  /* Setup a local variable to point to the framebuffer */
+  pbits = pScreenInfo->pfb;
+  
+  /* Apparently we need this for the render extension */
+  miSetPixmapDepths ();
+
+  /* Start fb initialization */
+  if (!fbSetupScreen (pScreen,
+		      pScreenInfo->pfb,
+		      pScreenInfo->dwWidth, pScreenInfo->dwHeight,
+		      monitorResolution, monitorResolution,
+		      pScreenInfo->dwStride,
+		      pScreenInfo->dwBPP))
+    {
+      ErrorF ("winFinishScreenInitFB - fbSetupScreen failed\n");
+      return FALSE;
+    }
+
+  /* Override default colormap routines if visual class is dynamic */
+  if (pScreenInfo->dwDepth == 8
+      && (pScreenInfo->dwEngine == WIN_SERVER_SHADOW_GDI
+	  || (pScreenInfo->dwEngine == WIN_SERVER_SHADOW_DDNL
+	      && pScreenInfo->fFullScreen)
+	  || (pScreenInfo->dwEngine == WIN_SERVER_SHADOW_DD
+	      && pScreenInfo->fFullScreen)))
+    {
+      pScreen->CreateColormap = winCreateColormap;
+      pScreen->DestroyColormap = winDestroyColormap;
+      pScreen->InstallColormap = winInstallColormap;
+      pScreen->UninstallColormap = winUninstallColormap;
+      pScreen->ListInstalledColormaps = winListInstalledColormaps;
+      pScreen->StoreColors = winStoreColors;
+      pScreen->ResolveColor = winResolveColor;
+
+      /*
+       * NOTE: Setting whitePixel to 255 causes Magic 7.1 to allocate its
+       * own colormap, as it cannot allocate 7 planes in the default
+       * colormap.  Setting whitePixel to 1 allows Magic to get 7
+       * planes in the default colormap, so it doesn't create its
+       * own colormap.  This latter situation is highly desireable,
+       * as it keeps the Magic window viewable when switching to
+       * other X clients that use the default colormap.
+       */
+      pScreen->blackPixel = 0;
+      pScreen->whitePixel = 1;
+    }
+
+  /* Place our save screen function */
+  pScreen->SaveScreen = winSaveScreen;
+
+  /* Backing store functions */
+  /*
+   * FIXME: Backing store support still doesn't seem to be working.
+   */
+  pScreen->BackingStoreFuncs.SaveAreas = fbSaveAreas;
+  pScreen->BackingStoreFuncs.RestoreAreas = fbRestoreAreas;
+
+  /* Finish fb initialization */
+  if (!fbFinishScreenInit (pScreen,
+			   pScreenInfo->pfb,
+			   pScreenInfo->dwWidth, pScreenInfo->dwHeight,
+			   monitorResolution, monitorResolution,
+			   pScreenInfo->dwStride,
+			   pScreenInfo->dwBPP))
+    {
+      ErrorF ("winFinishScreenInitFB - fbFinishScreenInit failed\n");
+      return FALSE;
+    }
+
+  /* Save a pointer to the root visual */
+  for (pVisual = pScreen->visuals;
+       pVisual->vid != pScreen->rootVisual;
+       pVisual++);
+  pScreenPriv->pRootVisual = pVisual;
+
+  /* 
+   * Setup points to the block and wakeup handlers.  Pass a pointer
+   * to the current screen as pWakeupdata.
+   */
+  pScreen->BlockHandler = winBlockHandler;
+  pScreen->WakeupHandler = winWakeupHandler;
+  pScreen->blockData = pScreen;
+  pScreen->wakeupData = pScreen;
+
+#ifdef RENDER
+  /* Render extension initialization, calls miPictureInit */
+  if (!fbPictureInit (pScreen, NULL, 0))
+    {
+      ErrorF ("winFinishScreenInitFB - fbPictureInit () failed\n");
+      return FALSE;
+    }
+#endif
+
+#if WIN_LAYER_SUPPORT
+  /* KDrive does LayerStartInit right after fbPictureInit */
+  if (!LayerStartInit (pScreen))
+    {
+      ErrorF ("winFinishScreenInitFB - LayerStartInit () failed\n");
+      return FALSE;
+    }
+
+  /* Not sure what we're adding to shadow, but add it anyway */
+  if (!shadowAdd (pScreen, 0, pScreenPriv->pwinShadowUpdate, NULL, 0, 0))
+    {
+      ErrorF ("winFinishScreenInitFB - shadowAdd () failed\n");
+      return FALSE;
+    }
+
+  /* KDrive does LayerFinishInit right after LayerStartInit */
+  if (!LayerFinishInit (pScreen))
+    {
+      ErrorF ("winFinishScreenInitFB - LayerFinishInit () failed\n");
+      return FALSE;
+    }
+
+  /* KDrive does LayerCreate right after LayerFinishInit */
+  pScreenPriv->pLayer = winLayerCreate (pScreen);
+  if (!pScreenPriv->pLayer)
+    {
+      ErrorF ("winFinishScreenInitFB - winLayerCreate () failed\n");
+      return FALSE;
+    }
+  
+  /* KDrive does RandRInit right after LayerCreate */
+#ifdef RANDR
+  if (pScreenInfo->dwDepth != 8 && !winRandRInit (pScreen))
+    {
+      ErrorF ("winFinishScreenInitFB - winRandRInit () failed\n");
+      return FALSE;
+    }
+#endif
+#endif
+
+  /*
+   * Backing store support should reduce network traffic and increase
+   * performance.
+   */
+  miInitializeBackingStore (pScreen);
+
+  /* KDrive does miDCInitialize right after miInitializeBackingStore */
+  /* Setup the cursor routines */
+#if CYGDEBUG
+  ErrorF ("winFinishScreenInitFB - Calling miDCInitialize ()\n");
+#endif
+  miDCInitialize (pScreen, &g_winPointerCursorFuncs);
+
+  /* KDrive does winCreateDefColormap right after miDCInitialize */
+  /* Create a default colormap */
+#if CYGDEBUG
+  ErrorF ("winFinishScreenInitFB - Calling winCreateDefColormap ()\n");
+#endif
+  if (!winCreateDefColormap (pScreen))
+    {
+      ErrorF ("winFinishScreenInitFB - Could not create colormap\n");
+      return FALSE;
+    }
+
+#if !WIN_LAYER_SUPPORT
+  /* Initialize the shadow framebuffer layer */
+  if (pScreenInfo->dwEngine == WIN_SERVER_SHADOW_GDI
+      || pScreenInfo->dwEngine == WIN_SERVER_SHADOW_DD
+      || pScreenInfo->dwEngine == WIN_SERVER_SHADOW_DDNL)
+    {
+#if CYGDEBUG
+      ErrorF ("winFinishScreenInitFB - Calling shadowInit ()\n");
+#endif
+      if (!shadowInit (pScreen,
+		       pScreenPriv->pwinShadowUpdate,
+		       NULL))
+	{
+	  ErrorF ("winFinishScreenInitFB - shadowInit () failed\n");
+	  return FALSE;
+	}
+    }
+#endif
+
+
+  /* Handle pseudo-rootless mode */
+  if (pScreenInfo->fRootless)
+    {
+      /* Define the WRAP macro temporarily for local use */
+#define WRAP(a) \
+    if (pScreen->a) { \
+        pScreenPriv->a = pScreen->a; \
+    } else { \
+        ErrorF("null screen fn " #a "\n"); \
+        pScreenPriv->a = NULL; \
+    }
+
+      /* Save a pointer to each lower-level window procedure */
+      WRAP(CreateWindow);
+      WRAP(DestroyWindow);
+      WRAP(RealizeWindow);
+      WRAP(UnrealizeWindow);
+      WRAP(PositionWindow);
+      WRAP(ChangeWindowAttributes);
+#ifdef SHAPE
+      WRAP(SetShape);
+#endif
+
+      /* Assign pseudo-rootless window procedures to be top level procedures */
+      pScreen->CreateWindow = winCreateWindowPRootless;
+      pScreen->DestroyWindow = winDestroyWindowPRootless;
+      pScreen->PositionWindow = winPositionWindowPRootless;
+      pScreen->ChangeWindowAttributes = winChangeWindowAttributesPRootless;
+      pScreen->RealizeWindow = winMapWindowPRootless;
+      pScreen->UnrealizeWindow = winUnmapWindowPRootless;
+#ifdef SHAPE
+      pScreen->SetShape = winSetShapePRootless;
+#endif
+
+      /* Undefine the WRAP macro, as it is not needed elsewhere */
+#undef WRAP
+    }
+  /* Handle multi window mode */
+  else if (pScreenInfo->fMultiWindow)
+    {
+      /* Define the WRAP macro temporarily for local use */
+#define WRAP(a) \
+    if (pScreen->a) { \
+        pScreenPriv->a = pScreen->a; \
+    } else { \
+        ErrorF("null screen fn " #a "\n"); \
+        pScreenPriv->a = NULL; \
+    }
+
+      /* Save a pointer to each lower-level window procedure */
+      WRAP(CreateWindow);
+      WRAP(DestroyWindow);
+      WRAP(RealizeWindow);
+      WRAP(UnrealizeWindow);
+      WRAP(PositionWindow);
+      WRAP(ChangeWindowAttributes);
+      WRAP(ReparentWindow);
+      WRAP(RestackWindow);
+#ifdef SHAPE
+      WRAP(SetShape);
+#endif
+
+      /* Assign multi-window window procedures to be top level procedures */
+      pScreen->CreateWindow = winCreateWindowMultiWindow;
+      pScreen->DestroyWindow = winDestroyWindowMultiWindow;
+      pScreen->PositionWindow = winPositionWindowMultiWindow;
+      pScreen->ChangeWindowAttributes = winChangeWindowAttributesMultiWindow;
+      pScreen->RealizeWindow = winMapWindowMultiWindow;
+      pScreen->UnrealizeWindow = winUnmapWindowMultiWindow;
+      pScreen->ReparentWindow = winReparentWindowMultiWindow;
+      pScreen->RestackWindow = winRestackWindowMultiWindow;
+#ifdef SHAPE
+      pScreen->SetShape = winSetShapeMultiWindow;
+#endif
+
+      /* Undefine the WRAP macro, as it is not needed elsewhere */
+#undef WRAP
+    }
+
+  /* Wrap either fb's or shadow's CloseScreen with our CloseScreen */
+  pScreenPriv->CloseScreen = pScreen->CloseScreen;
+  pScreen->CloseScreen = pScreenPriv->pwinCloseScreen;
+
+  /* Create a mutex for modules in seperate threads to wait for */
+  iReturn = pthread_mutex_init (&pScreenPriv->pmServerStarted, NULL);
+  if (iReturn != 0)
+    {
+      ErrorF ("winFinishScreenInitFB - pthread_mutex_init () failed: %d\n",
+	      iReturn);
+      return FALSE;
+    }
+
+  /* Own the mutex for modules in seperate threads */
+  iReturn = pthread_mutex_lock (&pScreenPriv->pmServerStarted);
+  if (iReturn != 0)
+    {
+      ErrorF ("winFinishScreenInitFB - pthread_mutex_lock () failed: %d\n",
+	      iReturn);
+      return FALSE;
+    }
+
+  /* Set the ServerStarted flag to false */
+  pScreenPriv->fServerStarted = FALSE;
+
+#if CYGDEBUG || YES
+  if (pScreenInfo->fMultiWindow)
+    ErrorF ("winFinishScreenInitFB - Calling winInitWM.\n");
+#endif
+
+  /* Initialize multi window mode */
+  if (pScreenInfo->fMultiWindow
+      && !winInitWM (&pScreenPriv->pWMInfo,
+		     &pScreenPriv->ptWMProc,
+		     &pScreenPriv->pmServerStarted,
+		     pScreenInfo->dwScreen))
+    {
+      ErrorF ("winFinishScreenInitFB - winInitWM () failed.\n");
+      return FALSE;
+    }
+
+#if CYGDEBUG || YES
+  if (pScreenInfo->fClipboard)
+    ErrorF ("winFinishScreenInitFB - Calling winInitClipboard.\n");
+#endif
+
+  /* Initialize the clipboard manager */
+  if (pScreenInfo->fClipboard
+      && !winInitClipboard (&pScreenPriv->ptClipboardProc,
+			    &pScreenPriv->pmServerStarted,
+			    pScreenInfo->dwScreen))
+    {
+      ErrorF ("winFinishScreenInitFB - winClipboardInit () failed.\n");
+      return FALSE;
+    }
+
+  /* Tell the server that we are enabled */
+  pScreenPriv->fEnabled = TRUE;
+
+  /* Tell the server that we have a valid depth */
+  pScreenPriv->fBadDepth = FALSE;
+
+#if CYGDEBUG || YES
+  ErrorF ("winFinishScreenInitFB - returning\n");
+#endif
+
+  return TRUE;
+}
+
+
+/*
+ *
+ *
+ *
+ *
+ * TEST CODE BELOW - NOT USED IN NORMAL COMPILATION
+ *
+ *
+ *
+ *
+ *
+ */
+
+
+/* See Porting Layer Definition - p. 20 */
+
+Bool
+winFinishScreenInitNativeGDI (int index,
+			      ScreenPtr pScreen,
+			      int argc, char **argv)
+{
+  winScreenPriv(pScreen);
+  winScreenInfoPtr      pScreenInfo = &g_ScreenInfo[index];
+  VisualPtr		pVisuals = NULL;
+  DepthPtr		pDepths = NULL;
+  VisualID		rootVisual = 0;
+  int			nVisuals = 0, nDepths = 0, nRootDepth = 0;
+
+  /* Ignore user input (mouse, keyboard) */
+  pScreenInfo->fIgnoreInput = TRUE;
+
+  /* Get device contexts for the screen and shadow bitmap */
+  pScreenPriv->hdcScreen = GetDC (pScreenPriv->hwndScreen);
+  if (pScreenPriv->hdcScreen == NULL)
+    FatalError ("winFinishScreenInitNativeGDI - Couldn't get a DC\n");
+
+  /* Init visuals */
+  if (!(*pScreenPriv->pwinInitVisuals) (pScreen))
+    {
+      ErrorF ("winFinishScreenInitNativeGDI - pwinInitVisuals failed\n");
+      return FALSE;
+    }
+
+  /* Initialize the mi visuals */
+  if (!miInitVisuals (&pVisuals, &pDepths, &nVisuals, &nDepths, &nRootDepth,
+		      &rootVisual,
+		      ((unsigned long)1 << (pScreenInfo->dwDepth - 1)), 8,
+		      TrueColor))
+    {
+      ErrorF ("winFinishScreenInitNativeGDI - miInitVisuals () failed\n");
+      return FALSE;
+    }
+
+  /* Initialize the CloseScreen procedure pointer */
+  pScreen->CloseScreen = NULL;
+
+  /* Initialize the mi code */
+  if (!miScreenInit (pScreen,
+		     NULL, /* No framebuffer */
+		     pScreenInfo->dwWidth, pScreenInfo->dwHeight,
+		     monitorResolution, monitorResolution,
+		     pScreenInfo->dwWidth,
+		     nRootDepth, nDepths, pDepths, rootVisual,
+		     nVisuals, pVisuals))
+    {
+      ErrorF ("winFinishScreenInitNativeGDI - miScreenInit failed\n");
+      return FALSE;
+    }
+
+  /*
+   * Register our block and wakeup handlers; these procedures
+   * process messages in our Windows message queue; specifically,
+   * they process mouse and keyboard input.
+   */
+  pScreen->BlockHandler = winBlockHandler;
+  pScreen->WakeupHandler = winWakeupHandler;
+  pScreen->blockData = pScreen;
+  pScreen->wakeupData = pScreen;
+
+  /* Place our save screen function */
+  pScreen->SaveScreen = winSaveScreen;
+
+  /* Pixmaps */
+  pScreen->CreatePixmap = winCreatePixmapNativeGDI;
+  pScreen->DestroyPixmap = winDestroyPixmapNativeGDI;
+
+  /* Other Screen Routines */
+  pScreen->QueryBestSize = winQueryBestSizeNativeGDI;
+  pScreen->SaveScreen = winSaveScreen;  
+  pScreen->GetImage = miGetImage;
+  pScreen->GetSpans = winGetSpansNativeGDI;
+
+  /* Window Procedures */
+  pScreen->CreateWindow = winCreateWindowNativeGDI;
+  pScreen->DestroyWindow = winDestroyWindowNativeGDI;
+  pScreen->PositionWindow = winPositionWindowNativeGDI;
+  pScreen->ChangeWindowAttributes = winChangeWindowAttributesNativeGDI;
+  pScreen->RealizeWindow = winMapWindowNativeGDI;
+  pScreen->UnrealizeWindow = winUnmapWindowNativeGDI;
+
+  /* Paint window */
+  pScreen->PaintWindowBackground = miPaintWindow;
+  pScreen->PaintWindowBorder = miPaintWindow;
+  pScreen->CopyWindow = winCopyWindowNativeGDI;
+
+  /* Fonts */
+  pScreen->RealizeFont = winRealizeFontNativeGDI;
+  pScreen->UnrealizeFont = winUnrealizeFontNativeGDI;
+
+  /* GC */
+  pScreen->CreateGC = winCreateGCNativeGDI;
+
+  /* Colormap Routines */
+  pScreen->CreateColormap = miInitializeColormap;
+  pScreen->DestroyColormap = (DestroyColormapProcPtr) (void (*)()) NoopDDA;
+  pScreen->InstallColormap = miInstallColormap;
+  pScreen->UninstallColormap = miUninstallColormap;
+  pScreen->ListInstalledColormaps = miListInstalledColormaps;
+  pScreen->StoreColors = (StoreColorsProcPtr) (void (*)()) NoopDDA;
+  pScreen->ResolveColor = miResolveColor;
+
+  /* Bitmap */
+  pScreen->BitmapToRegion = winPixmapToRegionNativeGDI;
+
+  ErrorF ("winFinishScreenInitNativeGDI - calling miDCInitialize\n");
+
+  /* Set the default white and black pixel positions */
+  pScreen->whitePixel = pScreen->blackPixel = (Pixel) 0;
+
+  /* Initialize the cursor */
+  if (!miDCInitialize (pScreen, &g_winPointerCursorFuncs))
+    {
+      ErrorF ("winFinishScreenInitNativeGDI - miDCInitialize failed\n");
+      return FALSE;
+    }
+  
+  /* Create a default colormap */
+  if (!miCreateDefColormap (pScreen))
+    {
+        ErrorF ("winFinishScreenInitNativeGDI - miCreateDefColormap () "
+		"failed\n");
+	return FALSE;
+    }
+
+  ErrorF ("winFinishScreenInitNativeGDI - miCreateDefColormap () "
+	  "returned\n");
+  
+  /* mi doesn't use a CloseScreen procedure, so no need to wrap */
+  pScreen->CloseScreen = pScreenPriv->pwinCloseScreen;
+
+  /* Tell the server that we are enabled */
+  pScreenPriv->fEnabled = TRUE;
+
+  ErrorF ("winFinishScreenInitNativeGDI - Successful addition of "
+	  "screen %08x\n",
+	  pScreen);
+
+  return TRUE;
+}
+
+
+/* See Porting Layer Definition - p. 33 */
+Bool
+winSaveScreen (ScreenPtr pScreen, int on)
+{
+  return TRUE;
+}
+
+
+PixmapPtr
+winGetWindowPixmap (WindowPtr pwin)
+{
+  ErrorF ("winGetWindowPixmap ()\n");
+  return NULL;
+}
+
+
+void
+winSetWindowPixmap (WindowPtr pwin, PixmapPtr pPix)
+{
+  ErrorF ("winSetWindowPixmap ()\n");
+}